JPS5814888B2 - Sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealing device, particularly for use on bridges or similar support structures.

In the known sealing device which is divided into individual laminates (German Patent Specification No. 2,305,749), the laminates are evenly aligned within the pressure cushion in the mold during pressure cushion molding. It is difficult to embed words.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to simplify the uniform embedding of a plurality of sealing members constituting a sealing device into a pressure cushion, while at the same time maintaining the mobility of the known sealing device. An object of the present invention is to provide a sealing device with an improved layer plate.

In the present invention, the object comprises a plurality of sealing members juxtaposed and at least partially embedded within the pressure cushion, the sealing members being provided with a sealing surface in contact with a part of the surface of the adjacent member; Opposite ends of adjacent sealing members are each provided with protrusions forming abutment surfaces, one of these abutment surfaces is formed with a pressure stud, and the other abutment surface is provided with a lock that engages with the pressure stand. Sealing device with holes
This is achieved through this.

The sealing members are mutually supported by the abutting surfaces, while at least on the outside of the corresponding contacting surfaces a pressure cushion is inserted between the sealing members to ensure a firm connection of the sealing member to the pressure cushion. I have to.

The manufacturing method is considerably simplified by the suppression stud and locking hole connection of the sealing member to form a link chain forming the sealing device.

Such a link chain can be placed very easily along the circular circumference of the mold for producing the pressure cushion.

At the same time, the complementary support features formed by adjacent abutment surfaces curved in the same direction ensure a uniform orientation of the individual sealing elements when manufacturing the pressure cushion.
Moreover, the connection using the suppression stud and the locking hole allows the sealing members to move relative to each other, allowing them to follow the deformation of the pressure cushion.

According to another feature of the invention, a close interengagement with the pressure cushion is achieved in that the sealing member is provided with a cavity at its end remote from the movement cavity.

This cavity can extend into the area of the suppression stud/locking hole connection.

In this way, the individual seal members sit like teeth on pressure cushions within the jaw.

A further interlock with the pressure cushion can be created by providing the sealing member with an extension extending away from the movement gap and joining within the pressure cushion.

The configuration of this toothed extension provides a gradual transition from a pressure cushion to a sealing device.

In this way, wear phenomena caused by movement-induced deformations of the support structure in the connection area between the pressure cushion and the sealing device are largely avoided.

Next, embodiments of the present invention will be described with reference to the drawings.

The cup-shaped support shown in FIG.
This is filled with a rubber pressure cushion (hereinafter referred to as cushion) 2a, and a support cover 33 is placed on top of it.
is provided, and this cover is movable to each side,
Supported under a supporting load.

Between the part of the support cover which engages the support cup 1aI and the inner wall of the support cup 1a, a circular movement gap 4a is provided which is sealed by a sealing device 5a.

Therefore, this sealing device prevents a portion of the cushion 2a from coming out.

The sealing device 5a must therefore be arranged in a circular manner below the movement gap 4a.

The construction of the sealing device is shown in detail in FIGS. 2 and 3.

FIG. 2 shows a side view of the individual sealing members 6, which are arranged in plurality in the transverse direction to form a sealing device 5a.

The individual sealing elements 6 have sealing surfaces 1 and 2, which are arranged adjacent to the support cup 1a and the support cover 3a, but are connected to each other via the circular part 3.

On the side remote from the movement gap 4a, the sealing element 6 has extensions 4 and 5 which project into the cushion and ensure interlocking therewith.

The extensions 4 and 5 extend arcuately within the angle formed by the sealing surfaces 1 and 2, which angle is approximately 90° in the illustration.

The sealing member has an eye-shaped locking hole 1 on the end face shown in FIG.
2, and this locking hole receives a suppression stud 13 protruding from the end face opposite to the locking hole 12 of the subsequent sealing member.

In this manner, each sealing member is provided with a suppression stud on one side and a locking hole on the other side, so that the juxtaposed sealing members are positively connected to each other by the connection of the suppression stud and the locking hole.

Once this connection is made, the sealing members are supported on their lateral abutment surfaces 10 and 11.

The abutment surfaces 10 and 11 are formed at the corresponding ends of the projections 8 and 9 of the sealing member.

These contact surfaces 10 and 11 are curved in the same direction,
That is, one contact surface 11 is convex, and the other contact surface 10 is therefore concave and complementary to each other.

The locking hole 12 and the pressing stud 13 are arranged approximately in the center of the abutment surfaces 11 and 10, respectively.

The recess formed between the extensions 4 and 5 saves material and provides a particularly tight interlocking with the cushioning material.

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[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view of a cushion showing how an embodiment of the present invention is used; FIG. 2 is a side view of a sealing member;
and FIG. 3 shows a sectional view through several sealing members in the plane 1--1 of FIG. 1, 2... Seal surface, 2a... Rubber pressure cushion, 4a... Movement gap, 5a...
...Seal device, 4, 5...Extension part, 12...
...Latching hole, 13...Press stud.

Claims (1)

[Scope of Claims] 1. In a sealing device 5a for sealing a motion gap 4a between adjacent members 1a, 3a of a support structure such as a bridge and a pressure cushion 2a, a small amount of the pressure cushion 2a is juxtaposed with the pressure cushion 2a. The sealing members 6 are provided with a plurality of sealing members 6 which are partially embedded in each of the sealing members 6, and the sealing members 6 are provided with sealing surfaces 1 and 2 that are in contact with a part of the surfaces of the adjacent members 1a and 3a. Protrusions 8 and 9 forming abutment surfaces 10 and 11 are provided at opposite ends, respectively, and these abutment surfaces 10.
A sealing device in which a pressing stud 13 is formed on one side of the sealing device 11, and a locking hole 12 that engages with the pressing stud 13 is formed on the other contact surface. 2 The moving gap 4a is annular, and the contact surfaces 10, 1
2. A sealing device according to claim 1, characterized in that 1 is curved in the same direction to match the radius of the movement gap 4a and the width of the sealing member 6 measured in this radial direction. 3. The contact surfaces 10, 11 are curved into a cylindrical shape,
The curved axes of the curved abutment surfaces 10 and 11 form the motion gap 4a.
3. The sealing device according to claim 2, wherein the sealing device extends perpendicularly to the plane of the sealing device. 4. Claims 1 to 4, characterized in that the sealing member 6 has a recess at the end remote from the movement gap 4a.
The sealing device according to any one of Item 3. 5. The sealing member 6 has an extension portion 4 that extends in a direction away from the motion gap 4a and is joined to the pressure cushion.
5. The sealing device according to any one of claims 1 to 4, characterized in that the sealing device has: 6. The sealing device according to claim 5, characterized in that the extensions 4, 5 are adjacent to the sealing surfaces 1, 2 that are in contact with the surfaces of the adjacent members 1a, 3a. 7. The seal device according to any one of claims 2 to 6, wherein the seal surfaces 1 and 2 are connected to each other by a curved portion 3. 8. Any one of claims 1 to 7, characterized in that the connection between the pressing stud 13 and the locking hole 12 is provided with play for rotational movement within the plane of the movement gap 4a. The sealing device according to item 1. 9 The pressing stud 13 and the locking hole 12 are connected to the contact surface 10,
The sealing device according to any one of claims 1 to 8, characterized in that the sealing device is disposed approximately at the center of the sealing device.